Which city does Jiangcheng in the poem refer to?

A: The author of this poem is Li Qingzhao. The $ NUMBER Bayong Building: formerly known as Xuanchang Building, was built in 494. In the first year of Qi Longchang in the Southern Dynasty, Shen Yue was appointed as the prefect of Dongyang. Located in the southeast of Jinhua City, Zhejiang Province. Water: This refers to the Wujiang River. Fourteen States: In 907, Qian Liu officially established Wu Yueguo, with Xifu as its capital (now Hangzhou, Zhejiang). It governs Jiangsu 13 states and Lin 'an county, Hangzhou, Viet Nam, Shanghai, Xiu Xiu, Wu, Mu, Qu, Taiwan Province, Wen, Chu, Ming and Fu, and is called "fourteen states" in history. The poem strongly praises the grandeur of Bayon Building. Because of the demise of the Northern Song Dynasty, the author fled from the north to the south, leading a wandering life, and thought of the measures taken by Qian Liu, the king of Wu Yue, to protect the environment and people, which gave birth to infinite feelings. A sentence or two shows the tragic mood of the author when he boarded the building. At 3: 00 or 4: 00, the Bayong Building faces the Wujiang River, and its momentum is extremely grand and open. I hope that heroes will come forth in large numbers to defend the great rivers and mountains that reunify the motherland.